Description
That sweet but powerful voice
Professional audio architecture, 340mW high driving power, 3.5mm SE and 4.4mm balanced output ports, dual DAC, MQA 8X, PCM768/DSD256 native decoding

Portable USB DAC/headphone amp
Computer sound card, HiRes certified, low power consumption, all-metal body, Bauhaus design, hardware volume control, RGB indicator light
Why use a USB dongle?
Recover a headphone port for your modern smartphone, giving voice to the large online library of lossless music available; higher detail compared to Bluetooth audio, hearing more musical details, bringing you back closer to the original music venue in experience.

Professional audio architecture
Containing circuitry on a level with professional full-scale HiBy Digital Audio Players, which is designed solely for high-res lossless music, replaying the original music in every detail, including all its energy and presence.

Independent FPGA-based dual independent crystal oscillator reclocking
Equipped with 45.158MHz and 49.152MHz dual dedicated audio crystal oscillators for effectively lower jitter, providing the whole audio system with a high precision, low jitter clock source.

Efficient USB receiver
Driven by a highly integrated 28nm USB receiver chip of high efficiency, with the 416M dedicated audio DSP onboard to realize the best balance between high performance and long runtime, effectively lowering the consumption of the smartphone's battery.

My dongle is more powerful than yours
340mW+340mW @32Ω is nearly unheard of for a USB dongle but here it is! Easily drive all your HiFi earphones and even some full-size headphones! High driving power is the stuff of miracles! It will let your earphones handle all music styles with more aplomb than ever, a higher sense of energy without sacrificing any fine control or detail!

High performance by the numbers
High SNR, low absolute noise level and low THD all at the forefront of products of this class, making for a faithful rendition of the great music at your fingertips on a black canvas.

MQA 8X unfolding
The HiBy FC4 includes MQA technology*, which enables you to play back MQA audio files and streams by a factor of 8x, delivering the sound of the original master recording.
*The FC4 features an MQA renderer now, and it is going to include MQA full decoding technology in the next few months.
The smartphone must be using apps supporting bit-perfect and MQA (e.g. HiByMusic, TIDAL), in order for MQA unfolding to occur with the HiBy FC4 connected via USB.

Dual ES9218PC DACs
Equipped with 2 of ESS technologies’ renowned ES9218PC DAC chips, set to output to each channel independently, their strong decoding power not letting go of a single musical detail.

Hi-res support
Supporting up to PCM768kHz/32bit, DSD256 (native) decoding, edging on professional HiFi in decoding specifications, this will have no problems decoding all your usual lossless streaming formats.

3.5mm SE and 4.4mm balanced brought together
Includes 3.5mm SE and 4.4mm balanced ports--balanced in position too! The attention to detail inspires confidence.

Software Integration
Seamlessly integrating with the HiByMusic app’s USB exclusive mode, be confident of your smartphone’s bit-perfect audio output to the FC4, fully unleashing the FC4’s hardware decoding/amplification power.
The HiByMusic App is a professional app for Hi-Res audio playback on Android and iOS, with over 3 million users worldwide, and its USB-exclusive mode coupled with external USB DAC/headphone amps garners widespread praise from HiFi aficionados all around.

All-platform support
Supports use on Android / iOS / Mac / Windows as USB dongle / computer external soundcard. No charging required, driver-free plug-and-play.
Driver-free plug-and-play on Android / iOS / Mac / Windows 10

Hi-Res certified for hi-quality sound
Hi-Res certification is your guaranteed ticket to good sound!

All-metal body
All-metal body in Bauhaus design language, black with luxurious gold trim.

Hardware volume buttons/hardware volume
30-step physical hardware volume button controlling hardware volume controller for best adaptability and lossless volume control.

RGB indicator light
Displaying different colours depending on what is being played:
Green: MQA
Blue: MQA Studio
Magenta: MQA Rendering
Yellow: ≤48k
Aqua: 64k-192k
Orange: 352.8k or above
White: DSD Red: Paused

What's in the box
①USB Type A to Type C interconnect ②FC4 DAC/headphone amp product proper ③Type-C to Type-C interconnect ④Product packaging ⑤User manual/warranty

What's in the box
①USB Type A to Type C interconnect ②FC4 DAC/headphone amp product proper ③Type-C to Type-C interconnect ④Product packaging ⑤User manual/warranty
Audio specifications
3.5mm PO | 4.4mm BAL | |
---|---|---|
Output Level | 1.9Vrms (32Ω) | 3.3Vrms (32Ω) |
Output Power | 110mW (32Ω) | 340mW (32Ω) |
THD+N | 0.0008% (32Ω) | 0.0006% (32Ω) |
Noise | 1.7μVrms (32Ω) | 2.2μVrms (32Ω) |
SNR | 120dB (32Ω) | 123 dB (32Ω) |
Dynamic Range | 120dB (32Ω) | 123 dB (32Ω) |
Crosstalk Rejection | 72dB (32Ω) | 98 dB (32Ω) |
Frequency response (-3dB) | 20-90Khz (32Ω) | 20-90Khz (32Ω) |
Model: HiBy FC4
Dimensions: 65.3*22.1*11.9 mm
Weight: 21.7 g
Chipset: ES9218 * 2
Buttons: Volume up / down
Supported formats PCM up to 768kHz/32bit, up to DSD256 native
RGB indicator light Status indicator
USB port: Type-C
Headphone out: 3.5mm TRS and CTIA-spec TRRS headsets
Balanced headphone out: 4.4mm balanced
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
HiBy Music, founded in 2011, is a leading company that specializes in developing and selling high-quality portable audio products. With a focus on digital audio players (DAP) and portable DAC & amplifiers, HiBy Music is dedicated to providing its customers with exceptional audio experiences. Whether you're an audiophile or a music enthusiast, HiBy Music has a range of products that cater to your specific needs. So why settle for anything less when you can enjoy music in its purest form with HiBy Music?
**Design and Build Quality**
The HiBy FC4 boasts a sleek and compact design, making it a great companion for those on the move. The construction feels durable, suggesting it will withstand the rigors of daily use, but my included USB C-to-C cable died yestarday after 3 months
**Sound Quality**
This DAC dongle truly shines in its audio delivery. With Hi-Res and MQA certification, one can expect a noticeably improved listening experience over most built-in phone or laptop DACs. The soundstage is expansive, with clear distinction between instruments. The highs, mids, and lows are balanced, providing a harmonious blend that is pleasing to the ears.
**Compatibility and Usability**
One of the great features of the HiBy FC4 is its broad compatibility with various devices. Whether you're connecting it to a smartphone, laptop, or tablet, the setup is straightforward. The plug-and-play functionality is a boon for non-tech-savvy users, ensuring that high-quality audio is just a connection away.
**Value for Money**
Considering the sound improvement and the premium build quality, the HiBy FC4 offers good value for its price. For audiophiles looking for portable solutions to elevate their listening experience, this dongle is a worthy investment.
**Conclusion**
The HiBy FC4 Portable Hi-Res & MQA Certified DAC Dongle stands out as a solid contender in the realm of portable audio enhancements. Whether you're an audiophile or just someone looking to improve your device's audio output, this product is sure to impress.
Thank you for taking the time to write a review for the HiBy FC4 Portable DAC.
Was also considering iBasso dc06 but decided to go with the FC4. iBasso was a little expensive and lacking any physical keys to control the volume, though iBasso has an app which allows to control the volume but you need to access the phone all the time to control it. FC4 on the other hand has physical volume buttons which gives you additional control on volume. I was able to drive the Sundara at around 80% of volume and pairing it with the Timeless was superb. Overall a great buy and speedy delivery as well.

Description
That sweet but powerful voice
Professional audio architecture, 340mW high driving power, 3.5mm SE and 4.4mm balanced output ports, dual DAC, MQA 8X, PCM768/DSD256 native decoding

Portable USB DAC/headphone amp
Computer sound card, HiRes certified, low power consumption, all-metal body, Bauhaus design, hardware volume control, RGB indicator light
Why use a USB dongle?
Recover a headphone port for your modern smartphone, giving voice to the large online library of lossless music available; higher detail compared to Bluetooth audio, hearing more musical details, bringing you back closer to the original music venue in experience.

Professional audio architecture
Containing circuitry on a level with professional full-scale HiBy Digital Audio Players, which is designed solely for high-res lossless music, replaying the original music in every detail, including all its energy and presence.

Independent FPGA-based dual independent crystal oscillator reclocking
Equipped with 45.158MHz and 49.152MHz dual dedicated audio crystal oscillators for effectively lower jitter, providing the whole audio system with a high precision, low jitter clock source.

Efficient USB receiver
Driven by a highly integrated 28nm USB receiver chip of high efficiency, with the 416M dedicated audio DSP onboard to realize the best balance between high performance and long runtime, effectively lowering the consumption of the smartphone's battery.

My dongle is more powerful than yours
340mW+340mW @32Ω is nearly unheard of for a USB dongle but here it is! Easily drive all your HiFi earphones and even some full-size headphones! High driving power is the stuff of miracles! It will let your earphones handle all music styles with more aplomb than ever, a higher sense of energy without sacrificing any fine control or detail!

High performance by the numbers
High SNR, low absolute noise level and low THD all at the forefront of products of this class, making for a faithful rendition of the great music at your fingertips on a black canvas.

MQA 8X unfolding
The HiBy FC4 includes MQA technology*, which enables you to play back MQA audio files and streams by a factor of 8x, delivering the sound of the original master recording.
*The FC4 features an MQA renderer now, and it is going to include MQA full decoding technology in the next few months.
The smartphone must be using apps supporting bit-perfect and MQA (e.g. HiByMusic, TIDAL), in order for MQA unfolding to occur with the HiBy FC4 connected via USB.

Dual ES9218PC DACs
Equipped with 2 of ESS technologies’ renowned ES9218PC DAC chips, set to output to each channel independently, their strong decoding power not letting go of a single musical detail.

Hi-res support
Supporting up to PCM768kHz/32bit, DSD256 (native) decoding, edging on professional HiFi in decoding specifications, this will have no problems decoding all your usual lossless streaming formats.

3.5mm SE and 4.4mm balanced brought together
Includes 3.5mm SE and 4.4mm balanced ports--balanced in position too! The attention to detail inspires confidence.

Software Integration
Seamlessly integrating with the HiByMusic app’s USB exclusive mode, be confident of your smartphone’s bit-perfect audio output to the FC4, fully unleashing the FC4’s hardware decoding/amplification power.
The HiByMusic App is a professional app for Hi-Res audio playback on Android and iOS, with over 3 million users worldwide, and its USB-exclusive mode coupled with external USB DAC/headphone amps garners widespread praise from HiFi aficionados all around.

All-platform support
Supports use on Android / iOS / Mac / Windows as USB dongle / computer external soundcard. No charging required, driver-free plug-and-play.
Driver-free plug-and-play on Android / iOS / Mac / Windows 10

Hi-Res certified for hi-quality sound
Hi-Res certification is your guaranteed ticket to good sound!

All-metal body
All-metal body in Bauhaus design language, black with luxurious gold trim.

Hardware volume buttons/hardware volume
30-step physical hardware volume button controlling hardware volume controller for best adaptability and lossless volume control.

RGB indicator light
Displaying different colours depending on what is being played:
Green: MQA
Blue: MQA Studio
Magenta: MQA Rendering
Yellow: ≤48k
Aqua: 64k-192k
Orange: 352.8k or above
White: DSD Red: Paused

What's in the box
①USB Type A to Type C interconnect ②FC4 DAC/headphone amp product proper ③Type-C to Type-C interconnect ④Product packaging ⑤User manual/warranty

What's in the box
①USB Type A to Type C interconnect ②FC4 DAC/headphone amp product proper ③Type-C to Type-C interconnect ④Product packaging ⑤User manual/warranty
Audio specifications
3.5mm PO | 4.4mm BAL | |
---|---|---|
Output Level | 1.9Vrms (32Ω) | 3.3Vrms (32Ω) |
Output Power | 110mW (32Ω) | 340mW (32Ω) |
THD+N | 0.0008% (32Ω) | 0.0006% (32Ω) |
Noise | 1.7μVrms (32Ω) | 2.2μVrms (32Ω) |
SNR | 120dB (32Ω) | 123 dB (32Ω) |
Dynamic Range | 120dB (32Ω) | 123 dB (32Ω) |
Crosstalk Rejection | 72dB (32Ω) | 98 dB (32Ω) |
Frequency response (-3dB) | 20-90Khz (32Ω) | 20-90Khz (32Ω) |
Model: HiBy FC4
Dimensions: 65.3*22.1*11.9 mm
Weight: 21.7 g
Chipset: ES9218 * 2
Buttons: Volume up / down
Supported formats PCM up to 768kHz/32bit, up to DSD256 native
RGB indicator light Status indicator
USB port: Type-C
Headphone out: 3.5mm TRS and CTIA-spec TRRS headsets
Balanced headphone out: 4.4mm balanced
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
HiBy Music, founded in 2011, is a leading company that specializes in developing and selling high-quality portable audio products. With a focus on digital audio players (DAP) and portable DAC & amplifiers, HiBy Music is dedicated to providing its customers with exceptional audio experiences. Whether you're an audiophile or a music enthusiast, HiBy Music has a range of products that cater to your specific needs. So why settle for anything less when you can enjoy music in its purest form with HiBy Music?
**Design and Build Quality**
The HiBy FC4 boasts a sleek and compact design, making it a great companion for those on the move. The construction feels durable, suggesting it will withstand the rigors of daily use, but my included USB C-to-C cable died yestarday after 3 months
**Sound Quality**
This DAC dongle truly shines in its audio delivery. With Hi-Res and MQA certification, one can expect a noticeably improved listening experience over most built-in phone or laptop DACs. The soundstage is expansive, with clear distinction between instruments. The highs, mids, and lows are balanced, providing a harmonious blend that is pleasing to the ears.
**Compatibility and Usability**
One of the great features of the HiBy FC4 is its broad compatibility with various devices. Whether you're connecting it to a smartphone, laptop, or tablet, the setup is straightforward. The plug-and-play functionality is a boon for non-tech-savvy users, ensuring that high-quality audio is just a connection away.
**Value for Money**
Considering the sound improvement and the premium build quality, the HiBy FC4 offers good value for its price. For audiophiles looking for portable solutions to elevate their listening experience, this dongle is a worthy investment.
**Conclusion**
The HiBy FC4 Portable Hi-Res & MQA Certified DAC Dongle stands out as a solid contender in the realm of portable audio enhancements. Whether you're an audiophile or just someone looking to improve your device's audio output, this product is sure to impress.
Thank you for taking the time to write a review for the HiBy FC4 Portable DAC.
Was also considering iBasso dc06 but decided to go with the FC4. iBasso was a little expensive and lacking any physical keys to control the volume, though iBasso has an app which allows to control the volume but you need to access the phone all the time to control it. FC4 on the other hand has physical volume buttons which gives you additional control on volume. I was able to drive the Sundara at around 80% of volume and pairing it with the Timeless was superb. Overall a great buy and speedy delivery as well.
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Let customers speak for us
from 5082 reviews
Just bought it and started using it with my IFI Zen Stack - feels awesome.
This was a natural pick for me, since I wanted to have a completely balanced setup for my HiFiMan Sundara.
Nothing much to add, if you want an optimal balanced setup without spending too much, then look no further.
Thanks AudioStore for being blazing fast with your delivery. I got it withing 48 hours of placing my order! Kudos.

For my HiFiMan Sundara, this is a nice quality 4.4 mm balanced cable. I am buying this for the second time, since the first one got destroyed by my kids.
If you are looking for a good quality 4.4 mm balanced cable, look no further.
Audio

This product is reached my expectation good purchase good audio signal transmission no noise at all.....thank you the audio store👍
Yes

I have used lots of TWS even high end of Samsung and Oppo worth 10K. But IEM sound signature is great! This is my second IEM. I had KZ-ZEX. It has dual driver with electrostatic. Compare with that MoonDrop Chu 2 is better clear and smooth sound signature even with single driver. I am using with Audiocular DAC cost 750. Just go with MoonDrop Chu 2 if you are music lover. Thanks.
Great packaging and quick delivery
Loved the theme of the store and the support of the customer service for every problem I faced. I would be interested in buying new things from the audio store in future.
Good Quality and got a clear case for the player.
Thank you 😊

The quality is great, I felt that the base got a bit reduced and mids and treble enhanced using the same. They look premium. The only downside is that they are slightly bulky as the cable is 16 core and sometimes you can feel it behind the ears. Overall a great cable to upgrade your entry level iems to support balanced output

After going through many websites, I came to know about this particular dac, which is purely oriented on audio amplification with dedicated chip unlike other dacs available under 2k, so ordered and received in two days, to my surprise it has significantly enhanced the audio experience on oneplus 13R, with wired earphones (redmi hi-res of 500 INR), usb type a to c adaptor really came into handy and detected as HiFi audio in my dell laptop, cherry on the cake was the pouch, I didn't expect a pouch, very happy with the purchase...

Visited thier store cum experience center it was very great place for sound lovers . Especially like their display of products in thier demo room.The Owner /Staff were cooperative and also suggested me several IEM's before i select one.

I was looking for IEM Tangzu but they were loud and bass was little low as per my ears.Owner or Associate at store suggested me Audicular i liked the sound as well as bass effect its great product.
The Sennheiser IE 200 delivers impressive value for the price. Comfort-wise, they’re lightweight and fit snugly thanks to the ergonomic design and included foam/silicone tips—great for long listening sessions. Build quality is solid despite the plastic housing, and the detachable braided cable adds durability. As for the sound signature, it’s balanced and clean—tight bass, clear mids, and smooth treble without harshness. Bonus points for the dual-tuning feature that lets you slightly tweak the sound. A fantastic entry-level choice for anyone looking to step into the audiophile world.
There sound is pretty good